Display Rotator Gear Structure for Slim Stable Orientation Switching
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Solution Overview
Problem
Existing display apparatuses with rotators suffer from increased thickness due to the rotator's design, and the display module may not maintain a vertically disposed state due to mismatched centers of rotation and gravity.
Innovation Solution
A slim rotator design featuring a driving motor, first and second gears with specific screw threads to increase rotational resistance, and a bracket to support the display module, allowing it to rotate between vertical and horizontal modes while preventing unwanted rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotator is disposed at the rear of the display module to enable rotation between vertical and horizontal modes, then the display module can be rotated to different orientations, but the overall thickness of the display apparatus increases
Solution Approach 1:
The rotator mechanism is nested within the bracket structure, with the first gear integrated into the bracket and the second gear positioned to mesh with it. The display module is coupled to the rotator through this nested arrangement, allowing the rotation mechanism to be compact and not increase the overall thickness of the display apparatus.
Solution Approach 2:
The rotation mechanism operates in a different dimensional plane by using meshing gears that rotate around axes perpendicular to the display module's thickness direction. The first gear rotates around a first rotating axis and the second gear rotates around a second rotating axis, enabling rotation functionality without increasing thickness in the original dimension.
2Ease of operation
If the center of rotation and center of gravity of the display module do not match, then the display module can be mounted on the rotator, but the display module cannot maintain a vertically disposed state and rotates in one direction
Solution Approach 1:
The screw threads on the first and second gears are configured to generate thrust that increases rotational resistance when the display module rotates in the first direction (vertical to horizontal). This preliminary anti-action counteracts the unbalanced gravitational torque, preventing the display module from rotating uncontrollably and maintaining stable positioning in both vertical and horizontal modes.
Solution Approach 2:
The rotational resistance parameter is dynamically changed based on the rotation direction through the screw thread configuration. When the display module rotates in the first direction, the screw threads generate thrust that increases rotational resistance. When rotating in the second direction, the rotational resistance is reduced, allowing smooth rotation while maintaining stability in the final position.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves a slim rotator thickness, maintains the display module in desired orientations, and prevents unwanted rotation, thereby enhancing the efficiency and usability of the display apparatus.
Implementation Method 1
the first gear part and the second gear part are formed to increase a rotational resistance between the first gear and the second gear when the display module rotates in a first direction in the first mode
Data Source
AI summary
A display apparatus includes a display module, and a rotator coupled to the display module and provided to rotate the display module between a first mode in which the display module is vertically disposed and a second mode in which the display module is horizontally disposed, and the rotator includes a driving motor configured to provide a driving force, a first gear configured to rotate around a first rotating axis parallel to a driving axis of the driving motor by the driving force from the driving motor, and a second gear configured to mesh with the first gear and rotate around a second rotating axis parallel to the driving axis and the first rotating axis, and the first gear includes a first gear part, and the second gear comprises a second gear part, and the first gear part and the second gear part are formed to increase a rotational resistance between the first gear and the second gear when the display module rotates in a first direction in the first mode.